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annotate dwt/dwthelper/System.d @ 150:f2e04420fd6c

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reworked overrides and superclass aliases
author Frank Benoit <benoit@tionex.de>
date Thu, 31 Jan 2008 19:04:56 +0100
parents 2eb6d07425c9
children de2578a843a7
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2eb6d07425c9 Fix ticket #2: debug version doesn't compile
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1 /**
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2 * Authors: Frank Benoit <keinfarbton@googlemail.com>
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3 */
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4 module dwt.dwthelper.System;
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5
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6 import tango.core.Exception;
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7 import tango.time.Clock;
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8
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9 template SimpleType(T) {
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10 debug{
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11 static void validCheck(uint SrcLen, uint DestLen, uint copyLen){
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12 if(SrcLen < copyLen || DestLen < copyLen|| SrcLen < 0 || DestLen < 0){
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2eb6d07425c9 Fix ticket #2: debug version doesn't compile
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13 //Util.trace("Error : SimpleType.arraycopy(), out of bounds.");
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14 assert(0);
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15 }
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16 }
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17 }
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19 static void remove(inout T[] items, int index) {
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20 if(items.length == 0)
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21 return;
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22
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23 if(index < 0 || index >= items.length){
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24 throw new ArrayBoundsException(__FILE__, __LINE__);
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25 }
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27 T element = items[index];
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29 int length = items.length;
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30 if(length == 1){
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31 items.length = 0;
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32 return;// element;
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33 }
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34
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35 if(index == 0)
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36 items = items[1 .. $];
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37 else if(index == length - 1)
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38 items = items[0 .. index];
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39 else
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40 items = items[0 .. index] ~ items[index + 1 .. $];
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41 }
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42
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43 static void insert(inout T[] items, T item, int index = -1) {
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44 if(index == -1)
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45 index = items.length;
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46
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47 if(index < 0 || index > items.length ){
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48 throw new ArrayBoundsException(__FILE__, __LINE__);
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49 }
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50
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51 if(index == items.length){
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52 items ~= item;
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53 }else if(index == 0){
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54 T[] newVect;
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55 newVect ~= item;
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56 items = newVect ~ items;
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57 }else if(index < items.length ){
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58 T[] arr1 = items[0 .. index];
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59 T[] arr2 = items[index .. $];
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60
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61 // Important : if you write like the following commented,
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62 // you get wrong data
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63 // code: T[] arr1 = items[0..index];
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64 // T[] arr2 = items[index..$];
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65 // items = arr1 ~ item; // error, !!!
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66 // items ~= arr2; // item replace the arrr2[0] here
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67 items = arr1 ~ item ~ arr2;
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68 }
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69 }
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71 static void arraycopy(T[] src, uint srcPos, T[] dest, uint destPos, uint len)
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72 {
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73 if(len == 0) return;
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74
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75 assert(src);
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76 assert(dest);
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77 debug{validCheck(src.length - srcPos, dest.length - destPos, len);}
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78
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79 if(src is dest){
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80 for(int i=0; i<len; ++i){
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81 dest[destPos+i] = src[srcPos+i];
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82 }
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83 }else{
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84 dest[destPos..(len+destPos)] = src[srcPos..(len+srcPos)];
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85 }
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86 }
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87 }
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88
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89
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90 class System {
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91
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92 alias SimpleType!(int).arraycopy arraycopy;
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93 alias SimpleType!(byte).arraycopy arraycopy;
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94 alias SimpleType!(double).arraycopy arraycopy;
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95 alias SimpleType!(float).arraycopy arraycopy;
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96 alias SimpleType!(short).arraycopy arraycopy;
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97 alias SimpleType!(long).arraycopy arraycopy;
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98 alias SimpleType!(uint).arraycopy arraycopy;
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99 alias SimpleType!(ushort).arraycopy arraycopy;
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100 alias SimpleType!(ubyte).arraycopy arraycopy;
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101 alias SimpleType!(ulong).arraycopy arraycopy;
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102 alias SimpleType!(char).arraycopy arraycopy;
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103 alias SimpleType!(wchar).arraycopy arraycopy;
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104 alias SimpleType!(Object).arraycopy arraycopy;
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105 alias SimpleType!(void*).arraycopy arraycopy;
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106
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107 alias SimpleType!(int[]).arraycopy arraycopy;
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108 alias SimpleType!(byte[]).arraycopy arraycopy;
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109 alias SimpleType!(double[]).arraycopy arraycopy;
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110 alias SimpleType!(float[]).arraycopy arraycopy;
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111 alias SimpleType!(short[]).arraycopy arraycopy;
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112 alias SimpleType!(long[]).arraycopy arraycopy;
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113 alias SimpleType!(uint[]).arraycopy arraycopy;
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114 alias SimpleType!(ushort[]).arraycopy arraycopy;
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115 alias SimpleType!(ubyte[]).arraycopy arraycopy;
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116 alias SimpleType!(ulong[]).arraycopy arraycopy;
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117 alias SimpleType!(char[]).arraycopy arraycopy;
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118 alias SimpleType!(wchar[]).arraycopy arraycopy;
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119 alias SimpleType!(Object[]).arraycopy arraycopy;
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120 alias SimpleType!(void*[]).arraycopy arraycopy;
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121 alias SimpleType!(void*[]).arraycopy arraycopy;
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122
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123 static long currentTimeMillis(){
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124 return Clock.now().ticks() / 10000;
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125 }
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126
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127 }
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128